Corn-plow.



G. W. STOCKHAM.

CORN PLOW. APPLICATION mio MA1/13. 1915.

Patented Dec. 19, 1916 4 SHEETS-SHEET I.

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G. W. STOCKHAM.

coRN PLow. APPLICATION FILED MAY I3. 1915.

Patented Dec. 19,1916.

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coRN PLow. APPLICATION FILED MAY I3. I9I5.

Patented Dec. 19,1916.

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G. W. STUCKHAM.

CORN PLOW.

l APLlCATON FILED MAY 13. |915- Patented Dec. 9 'a 4 SHEETS-SHEET 4.

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GEORGE W. srooxrriiivi, or MANKOTA, KANsAs.

coRN-rL'oW.

I Specification of Letters Patent.

Patented'Dec. 19, 1916.

Application filed May 13, 1915. Serial No. 27,900. n

To all whom t may concern:

Be it known that I, GEORGE W. STOCK- HAM, a citizen of the United yStates of America, residing at Mankota, in the county of 5 Jewell and State of Kansas, have invented the production of a simple and efcient means for controlling the lateral movement of the plow beams to the desired position for the purpose of 4facilitating the plowing of the ground between the several rows of corn.

With these and other objects .in view this invention consists of certain novel combinations, constructions, and arrangements of parts as will be hereinafter fully describedv and claimed. l

In the accompanying drawings:` Figure 1 is a top plan view of the plow. Fig. 2 is a rear elevation thereof. F ig. 3 is a section taken on line 3 3, of Fig. 1. Fig. 4: is a section taken online 4 4, of Fig.V 1. Fig.l 5 is a vertical section through one series of the plow supporting yokes.

ard which Vcarries the lever for raising and lowering the plow beams. Fig. y7 is a perspective view ofv one of the. guiding brackets carried by the frame ofthe plow. Fig. 8 is O a perspective view of-one of the operating levers forl controlling the lateral Amovement of the plow beams. Fig. 9 is a front elevation of one of the upper ends ofthe supporting yokes for engaging the ends of the plow 5 beams. Fig. 10 is a perspective view of one Fig. 11 `is a sectional p vcarried by the ends of the frame of the corn of the plow beams.

view taken on line 11-11, of Fig. 1.

By referring to the drawings it will be seen that l designates the supporting wheels,

9 which supporting wheels engage the stub axles 2. These stub axles 2 support the longitudinally extending end beams 3 of the main frame, which beams 3 engage thetransversely extending front and rear beams 4. 3 A draft tongue or pole 5 is carried by the frame and is braced by means of the diverg- Fig.16 is a vertical v section taken through the supporting standing braces 6 as clearly illustrated inFig. 1.-v The rear end yofthe pole or tongue 5 is also braced by means of an arc-shaped brace 7 clearly illustrated in Fig. 1.

A plurality of substantially inverted U- shaped hanger yokes 8 are secured tothe forward beam t of the main frame, and

these yokes are provided 'with inwardly extending ends 9, which endsearry the nuts 10, which nuts are threaded thereon. A plowvbeam 11 has its forward end `secured to each of the inwardly extendingends 9 of f the yokes 8, thereby causing each supporting yoke 8 to support or engage two plow beams 11. A plurality ofy rearwardlyextending inclined braces 12 also eng'age the inwardly extending` ends 9 of the yoke frames 8 and constitute lefficient braces therefor for resisting the rearward pulling movement of the plow beams 11.

A Each plow beam comprises a main portion 13 having an auxiliary beam 14y secured thereto. These auxiliary beams 111 are so placed as to have the auxiliary beam of each pair to extend upon the opposite side of the vmain beam as illustrated clearly in Fig. 5.

A hanger yoke l5 engages each pair of plow beams, and these hanger yokes 15 are,

provided with auxiliary hanger bars 16 carried by the side thereof for` engaging' the] auxiliary portions of theplow beam. This structure is clearly the drawings. A

,The hanger yokes l5 carry supporting eyes 17 at the upper ends thereof, which supportingeyes engage a supporting bar 18, the supporting bar 18 extending transversely of the main-frameof the corn plow'. A plurality of adjusting collars -19 are placedin spaced relation upon the Vbar 18 so as to limit the lateral movementv of thejsupporting yokes 15. lThe supporting bar 18 is adapted to have a vertical sliding movement inthe longitudinally extending slots V2O formed in the supporting or guide plates or brackets 21. These brackets or guideplates21 are raising and lowering of the cornplow to thev desired position. A coil spring 25 engages the standard 23 and the mally causing the free end ofthe lever to be illustrated in Fig. 2 of K yeo lever 22 for norf Vthe quadrant 29 carried of the plow.

From the foregoing description it will be seen that a. very simple and eiiicient device has been produced for controlling the lateral adjustment of the plow beams whereby the field may be easily and conveniently plowed between the rows of corn, and at the same time allow the plow beams to be shifted both laterally and vertically when so desired.

The inner end of the lever 22 above described is forked so asto straddle or extend said plow beams in a laterally in two prongs `for conveniently engaging the beam 18 to facilitate the operation of this beam.

Having thus described the invention what is claimed as new, is 1- l. ln a corn plow of the class described,

the combination of a frame, means for sup.

porting said frame, said frame comprising a pair of longitudinal beams, a pair of transversely extending' beams carried there on, inverted U-shaped supporting yokes carried upon the forward transversely extendinp,l beams, the sides of each yoke extending' inwardly at its lower end to provide inwardly extending ends, plo-w beams pivotally mounted upon said inwardly extending ends, whereby each yoke may support a pair of plow beams, inclined braces securedl to said inwardly extending' ends and to the rear transversely extending beams, whereby said yokes will be held against rearward movement, means for vertically adjusting said plow beams, and means for adjusting horizontal plane.

2. In a corn plow of the class described, the combination of a frame, supporting yokes carried upon said frame, plow beams pivotally mounted upon said supporting` yokes, hanger yokes secured to said supporting; yokes, means for adjusting' said plow Gopies of this patent may be obtained for the levers 26 alsov five cents beams in a horizontal plane, a lifting; bar extending' entirely across the upper portion of said frame, means for adjusting said lifting,- bar in a vertical plane, and meanssecured to said hanger yokes and connected to said lifting bar for lifting; said hanger yokes as said lifting,` bar is lifted, whereby said plow beams may be lifted, said lastmentioned means being` adapted to slide along' said lifting' bar as said plow beams are adjusted in a horizontal plane.

ln a corn plow of the class described, the combination of a frame, supporting yokes carried by said frame, plow beams pivotally mounted upon said supporting' yokes, hanger yokes lsecured to said plow beams, a lifting barV extending entirely across the upper portion of said frame, means for adjusting' said lifting); bar in a vertical plane, a supporting eye secured to each of said hanger yokes, said eyes embracing' said lifting' bar so as to slide thereon when said plow beams are adjusted in a horizontal plane, said supporting eyes being` adapted to lift said plow beams as said lifting' bar is elevated, and means for limiting` the sliding` movement of said eyes upon said lifting' bar as said plow beams are swung' in a horizontal plane.

et. In a corn plow of the class described, the combination of a frame, supporting yokes carried by said frame, plow beams pivotally mounted upon said supporting yokes,hanger yokes secured to said plo-w beams, a lifting; bar extending' entirely across the upper portion of said frame, means for adjusting said lifting,` bar in a vertical plane, a supporting eye secured to each of said hanger yokes, said eyes embracing' said lifting` bar so as to slide therefrom when said plow beams are adjusted in a horizontal plane, said supporting eyes being' adapted to lift said plow beams as said lifting' bar is elevated, collars embracing' said lifting' bar and being slidably mounted thereon, means for holding' said collars in adjusted set positions, said collars being' positioned upon each side of said eyes, whereby the movement of said eyes along said lifting bar will be limited.

In testimony whereof l hereunto affix my signature.

ononon w. srocKinii/i.

each, by addressing the Commissioner of Patents,

Washington, 11.6. 

